Yggdrasil Mark I's hard drive died last night. A preliminary chkdsk seems to indicate that only program files and little, if any, personal data was corrupted, but she won't boot up now.
I grabbed a hard disk at Best Buy on my way to teach just now, and after I get done here I'll be going home to try to effect repairs. I haven't done a backup of anything for close to three years now, so suffice to say, I'm really hoping this works out.
See, this is why I should have gotten to work on all that end-of-term stuff here sooner ...